Flushing-tank



(No Model.)

' J. R: DONNELLY &a c. P. BARTON.

FLUSHING TANE.

No; 5155521. w PatentedPeb. 27, 1894 JOHN R. DONNELLY AND CHARLES F.BARTON, OF FAIRFIELD, MAINE.

FLUSHlNG-TANK.

SPECIFICATION forming part of Letters Patent No. 515,521, dated February27, 1894. Application filed March 13. 1893. Serial No.465.804. (Nemodel.)

.To all whom it may concern:

Be it known that we, JOHN R. DONNELLY and CHARLES F. BARTON, citizens ofthe United States, residing et Feirfield, in the ounty of Soncrset andState of Maine, have invented certain new and useful Improvements inFlushing-Tanks: and we (lo hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it eppertains to make and use thesame.

Our invention reletes to e finsh tenk of that class which intermittentlyfills and discherges when fed by e continuous stream of water.

The object of the invention is to devise e tenk which will be especiallyedepted to the use of photographers for washing prints, &(3., and theaim is to constructa tenk which will internittently discharge the entirecontents of the tenk and which will fill each time to any desiredheight.

W'e illustrete our invention in the accounpenying drawings in whichl'igure l is a vertical section througha tenk constructed according toour invention and Fig. 2 is e plan or top View. Fig. 3 is a perspectiveView of a detail.

A represents a tenk of eny suitable construction; it ney be supported onlegs or brackets or in any desired location according to the use towhich it is to be put.

B is the water supply pipe and C is the Weste pipo which extendsVerticelly through the bottom. lVithin the weste pipe O fits the tube D.The fit must be somewhat loose so that the tube will slide easily up anddown within the weste pipe. On the top of the tube D is an open toppedfloat d. e prefer to use a floet such es here shown consisting of a flatdisk with e rim or fiange around its edge and made as shallow aspossible consistent with buoyancy. It must be somewhet more thensufficiently buoyent when resting on the water, to lift the tube D. Thefloat d when down rests ina recess a; whichisforrned in the bottom ofthe tenk around the upper end of the waste pipo C. The rim of the fioatshould be below or' et the level of the bottom of the tenk so as todrein off all the water when the tenk discharges.

In order to allow the water to get under the fioet to lift it, it restswhen down on pins a' in the bottom of the recess a. Means are providedto limit the upward motion of the floet and for this purpose we preferto meke use of a ring ewhich is held centrally in line with and abovethe tube atany desired height by means of a bent rod f which isedjustably secured in a lug h by means of a set screw g.

The operation of our tenk is as follows- When the water comes i u itfirst gets under the floet d filling the recess a and the buoyency ofthe fioat lifts the tubeD in the weste pipe. As the water rises, thefloat end tube rise, the weste pipe being all the time closed by thetube. When the fioat reaches the ring e which is setat the point towhich it is desired to fill the tenk, the lower edge of the ringsurrounds the opening in the upper end of the tube and arrests thenotion of the float. The water continues to rise and overflows the rimof the oet filling it and causing it to sink. The water which firstoverfiows into the fioatis prevented from running down through the tube,the opening of which is closed by the ring e, so that the filling of thefloet is assured however small the stream which is flowing through theinlet pipe. The water immediately begins to discharge through the top ofthe tube, passing down through the waste pipe and so on until it isentirely dreined froni the tenk the fact that the floet is entirelybelow the surface of the bottom allowing all the water to discherge esalready pointed out. All the water being discherged from the tenk andthe fioat being within the recess a, the water continues to ,overflowinto the fioat in a Volume equal to what is running into the tenk butthe body ot water under the fioet is sufiicient to lift it even with elittle water inside. The tube is egein drawn upwerd and the tenk againdischarges and so on internittently. If the tube when et its highestposition sticks and refuses to settle when the float is full, the watersimply continues to rise and overfiow into the ring e and thence downthe tube so that the tenk een never overflow unless the tube' getsclogged.

We claiml.` The herein described ushing tankheving a weste pipe, a tubefitting therein and ICQ having on its upper end an open topped float forlifting said tube, and a ring Suspended in the tank above said tube andaxially in line with the same for checking its Upward Inoton the loweredge of said ring being adapt ed to form a tight joint with the surfaceof sa d float the thiekness of said ring being sufficent to allow thefioat to fill before the water runs over its upper edge, substantiallyas described.

2. The herein described flushing tank havmg a waste pipe, a tube fittingthei-ein and having on its upper end an open topped float for liftingsaid tube, a ring centrally above said tube and axially in linetherewith, the

JOHN R. DONNELLY. CI-IARLES F. BARTON.

YVitnesses:

F. E. MCFADDEN, E. W. MOFADDEN.

